Used to kill aphids, mites, mosquitoes, and flies; also used by veterinarians to treat worm infections in dogs; [EXTOXNET] Used as an insecticide and acaricide in field crops, greenhouses and mushroom cultivation; Also used to kill mosquitoes; [ACGIH]

Comments

Classified as "moderately toxic," naled has an LD50 of 91 to 430 mg/kg in rats; Skin sensitization has been reported; [EXTOXNET] Structurally similar to dichlorvos; A dermal sensitizer; [ACGIH]

Basis for original (SCP) IDLH: Because no useful data on acute inhalation toxicity are available, the chosen IDLH has been estimated from the male rat oral LD50 of 250 mg/kg [Gaines 1969 cited by ACGIH 1971]. ACGIH [1971] also reported that the acute toxicity data, inhalation data, and experience to date indicate that this is not a highly dangerous material. . . . Human data: None relevant for use in determining the revised IDLH.

Category

Description

Sources/Uses

Used to kill aphids, mites, mosquitoes, and flies; also used by veterinarians to treat worm infections in dogs; [EXTOXNET] Used as an insecticide and acaricide in field crops, greenhouses and mushroom cultivation; Also used to kill mosquitoes; [ACGIH]

Comments

Classified as "moderately toxic," naled has an LD50 of 91 to 430 mg/kg in rats; Skin sensitization has been reported; [EXTOXNET] Structurally similar to dichlorvos; A dermal sensitizer; [ACGIH]

Reference Link

Exposure Assessment

BEI

Skin Designation (ACGIH)

Yes

TLV (ACGIH)

0.1 mg/m3, inhalable fraction and vapor

PEL (OSHA)

3 mg/m3

MAK

1 mg/m3, inhalable fraction

IDLH (NIOSH)

200 mg/m3

Excerpts from Documentation for IDLHs

Basis for original (SCP) IDLH: Because no useful data on acute inhalation toxicity are available, the chosen IDLH has been estimated from the male rat oral LD50 of 250 mg/kg [Gaines 1969 cited by ACGIH 1971]. ACGIH [1971] also reported that the acute toxicity data, inhalation data, and experience to date indicate that this is not a highly dangerous material. . . . Human data: None relevant for use in determining the revised IDLH.